I recently constructed a 10'x14' greenhouse and have been monitoring temperature and humidity levels prior to moving all my plants into the new digs. I have a heater tied to a thermostat and feel pretty good about my temperatures not dipping too low. The greenhouse gets a good amount of sun and during peak time it warms up rather quickly. When it gets warm, vents open and it prevents the highs from being too high. My concern is that between when the greenhouse gets peak afternoon sun and when the sun goes down the temperature may change 15-20 degrees Fahrenheit in the span of 60-120 minutes. My questions are: a: how fast is too fast for temperature changes? b: am i better off lowering my peak temperatures to avoid significant temperature changes?